B. f(x)=5(6.86x) this the correct anwser
100 + 0.50c = 1.50c <== ur equation
100 = 1.50c - 0.50c
100 = c....so he would have to sell 100 cups of coffee to break even
24x-36 . because you distribute the six to simplify your answer. <span />
Answer:

Here you go.Hope this help!!